Celsius to Fahrenheit calculator
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
How it is worked out
- Multiply by 9/5: 20 × 9 ÷ 5 = 36.
- Add 32: 36 + 32 = 68 °F.
| Inputs | Answer |
|---|---|
| 0 | 0 °C is 32 °F. |
| 37 | 37 °C is 98.6 °F. |
| 36.6 | 36.6 °C is 97.88 °F. |
| 100 | 100 °C is 212 °F. |
How to use it
°F = °C × 9/5 + 32. 20 °C × 1.8 = 36, plus 32 = 68 °F. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at standard sea-level pressure.
A quick estimate: double the Celsius value and add 30. It is close for everyday temperatures; use the calculator when you need the exact figure.
Frequently asked questions
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 (1.8) and add 32.
What is 37 °C in °F?
37 × 1.8 + 32 = 98.6 °F.
At what temperature are Celsius and Fahrenheit equal?
At −40: −40 °C is −40 °F.
Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.
Written by Calculators Free Editorial Team · Data checked 2026-11-12
About · How we verify this · Editorial policy · Corrections
About · How we verify this · Editorial policy · Corrections
General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.